LONDON, Nov 5 (Reuters) - Britain said on Monday it regretted a U.S. decision to reimpose sanctions on Iran.

“We regret the reimposition of sanctions by the U.S. We continue to believe that the Iran nuclear deal makes the world a safer place and our position remains that as long as Iran continues to meet its obligations under the deal by respecting strict limits on its nuclear activity, we will be committed to it too,” Prime Minister Theresa May’s spokesman said.

“As such we continue to fully support expanding our trade relationship with Iran and encourage UK businesses to take advantage of commercial opportunities that arise.”

The U.S. has restored sanctions lifted under a 2015 nuclear deal negotiated by the administration of President Barack Obama and five other world powers. It added 300 new designations in Iran’s oil, shipping, insurance and banking sectors. (Reporting by Elizabeth Piper, writing by William James, Editing by Kylie MacLellan)